There is a scene at 1h 15m where Strickland is interrogating Elisa and Zelda.
It feels like, in the end, Elisa said something different from what Zelda repeated then to the angry Strickland.
Am I wrong or what did she really say?
The movie is subtitled when Elisa has no translator and we need to know what she's saying...
At the point, we see her sign 'trivial' and Zelda translates for Strickland [and the audience]
After they are dismissed, she quickly signs something for which there is neither inworld nor subtitle translation - after he asks her to "Say that again" she signs it slowly and the subs give us one letter at a time..
F ... U ... *... *... ..Y..O..U..
After Strickland asks a second time and Zelda translates as "Thank you" then we are back to accurate translation.